base::Bind: Convert disk_cache_based_ssl_host_info.

net/disk_cache/disk_cache.h

Index: net/disk_cache/disk_cache.h
diff --git a/net/disk_cache/disk_cache.h b/net/disk_cache/disk_cache.h
index 3e0efa6eb748b3cda4f4e8041c3f3b4bc24845fa..8fc74b70c05022e03db5395b25a58dbf4a72f483 100644
--- a/net/disk_cache/disk_cache.h
+++ b/net/disk_cache/disk_cache.h
@@ -78,6 +78,8 @@ class NET_EXPORT Backend {
   // |entry| must remain valid until the operation completes.
   virtual int OpenEntry(const std::string& key, Entry** entry,
                         OldCompletionCallback* callback) = 0;
+  virtual int OpenEntry(const std::string& key, Entry** entry,
+                        const net::CompletionCallback& callback) = 0;
 
   // Creates a new entry. Upon success, the out param holds a pointer to an
   // Entry object representing the newly created disk cache entry. When the
@@ -87,6 +89,8 @@ class NET_EXPORT Backend {
   // receive the |entry| must remain valid until the operation completes.
   virtual int CreateEntry(const std::string& key, Entry** entry,
                           OldCompletionCallback* callback) = 0;
+  virtual int CreateEntry(const std::string& key, Entry** entry,
+                          const net::CompletionCallback& callback) = 0;
 
   // Marks the entry, specified by the given key, for deletion. The return value
   // is a net error code. If this method returns ERR_IO_PENDING, the |callback|
@@ -179,6 +183,8 @@ class NET_EXPORT Entry {
   // performed from the callback code.
   virtual int ReadData(int index, int offset, net::IOBuffer* buf, int buf_len,
                        OldCompletionCallback* completion_callback) = 0;
+  virtual int ReadData(int index, int offset, net::IOBuffer* buf, int buf_len,
+                       const net::CompletionCallback& completion_callback) = 0;
 
   // Copies cache data from the given buffer of length |buf_len|.  If
   // completion_callback is null, then this call blocks until the write
@@ -196,6 +202,9 @@ class NET_EXPORT Entry {
   virtual int WriteData(int index, int offset, net::IOBuffer* buf, int buf_len,
                         OldCompletionCallback* completion_callback,
                         bool truncate) = 0;
+  virtual int WriteData(int index, int offset, net::IOBuffer* buf, int buf_len,
+                        const net::CompletionCallback& completion_callback,
+                        bool truncate) = 0;
 
   // Sparse entries support:
   //